Shop Lab-Grown Marquise Diamond Rings

Diamond jewelry is even more fun when you go bold with the style. Shop KAY’s diamond rings, and find new ways to express your style. Shop every style—from bold enough to carry a look to understated diamond rings that you’ll love to layer.

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Lab-Grown Marquise Diamond Rings

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Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 1-1/4 ct tw 14K Rose GoldOnline Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 2 ct tw 14K Rose Gold (F/SI2) (F/SI2)Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 1/2 ct tw 14K Yellow GoldOnline Exclusive

Marquise & Round-Cut Lab-Grown Diamond Deconstructed Ring 1/5 ct tw 10K White GoldNew

Memories Moments Magic Lab-Grown Diamonds Marquise & Trillion-Cut Three-Stone Engagement Ring 3-1/3 ct tw 14K White GoldOnline Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Engagement Ring 2 ct tw 14K Rose GoldOnline Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Seven-Stone Anniversary Ring 2 ct tw 14K Rose GoldOnline Exclusive

Memories Moments Magic Lab-Grown Diamonds Marquise & Trillion-Cut Three-Stone Engagement Ring 3-1/3 ct tw 14K Yellow GoldOnline Exclusive

Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K Yellow GoldPreviously Owned

Previously Owned Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 1-1/2 ct tw 14K White GoldPreviously Owned

Previously Owned Lab-Grown Diamonds by KAY Marquise-Cut Anniversary Band 2 ct tw 14K White GoldPreviously Owned

Previously Owned Lab-Grown Diamonds by KAY Marquise-Cut Diamond Engagement Ring 1-1/2 ct tw 14K White GoldPreviously Owned

Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White GoldPreviously Owned

Previously Owned Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White GoldPreviously Owned

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Anniversary Ring 1/3 ct tw 18K Yellow GoldNew

Lab-Grown Diamonds by KAY Marquise-Cut Engagement Ring 2 ct tw 14K White GoldClearance

Monique Lhuillier Bliss Marquise & Round-Cut Lab-Grown Diamond Anniversary Ring 7/8 ct tw 18K White GoldNew

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 18K White GoldNew

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Two-Row Anniversary Ring 1 ct tw 14K White GoldNew

Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Ring 1 ct tw 14K White GoldNew

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 3/4 ct tw 14K White GoldOnline Exclusive

THE LEO Legacy Lab-Grown Diamond Marquise-Cut Double Frame Twist Engagement Ring 1-1/4 ct tw 14K White GoldClearance

Compare Items

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 1-1/4 ct tw 14K Rose Gold
Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 2 ct tw 14K Rose Gold (F/SI2) (F/SI2)
Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 1/2 ct tw 14K Yellow Gold
Online Exclusive

Marquise & Round-Cut Lab-Grown Diamond Deconstructed Ring 1/5 ct tw 10K White Gold
New

Memories Moments Magic Lab-Grown Diamonds Marquise & Trillion-Cut Three-Stone Engagement Ring 3-1/3 ct tw 14K White Gold
Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Engagement Ring 2 ct tw 14K Rose Gold
Online Exclusive

Now + Forever Lab-Grown Diamonds Marquise-Cut Seven-Stone Anniversary Ring 2 ct tw 14K Rose Gold
Online Exclusive

Memories Moments Magic Lab-Grown Diamonds Marquise & Trillion-Cut Three-Stone Engagement Ring 3-1/3 ct tw 14K Yellow Gold
Online Exclusive

Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K Yellow Gold
Previously Owned

Previously Owned Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 1-1/2 ct tw 14K White Gold
Previously Owned

Previously Owned Lab-Grown Diamonds by KAY Marquise-Cut Anniversary Band 2 ct tw 14K White Gold
Previously Owned

Previously Owned Lab-Grown Diamonds by KAY Marquise-Cut Diamond Engagement Ring 1-1/2 ct tw 14K White Gold
Previously Owned

Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold
Previously Owned

Previously Owned Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold
Previously Owned

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Anniversary Ring 1/3 ct tw 18K Yellow Gold
New

Lab-Grown Diamonds by KAY Marquise-Cut Engagement Ring 2 ct tw 14K White Gold
Clearance

Monique Lhuillier Bliss Marquise & Round-Cut Lab-Grown Diamond Anniversary Ring 7/8 ct tw 18K White Gold
New

Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 18K White Gold
New

Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Two-Row Anniversary Ring 1 ct tw 14K White Gold
New

Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Ring 1 ct tw 14K White Gold
New

Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 3/4 ct tw 14K White Gold
Online Exclusive

THE LEO Legacy Lab-Grown Diamond Marquise-Cut Double Frame Twist Engagement Ring 1-1/4 ct tw 14K White Gold
Clearance